How can I backup my folders which is changed ion file types?

November 2, 2015 at 01:02:23
Specs: Windows 8.1 64bits
I was copying some pics in my pendrive but suddenly it got corrupted and all other folders in my pendrive got converted in file type of 8 kb, 32 kb. I dont have backup of those folders anywhere else. I have tried few apps ZAR etc to backup. files having extention .chk were recovered but as i am trying to convert it to picture format it does nt open. It shows message as windows could not open the file as the file is corrupted or file is too large to open.
I would like to know whether there is any way to recover all those folders as these are very important for me.

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#1
November 2, 2015 at 01:45:06
Do you know the source of the corruption?

As far as recovery, you don't want to write anything to the pen drive. Doing so may overwrite anything you could recover intact or whole. Given your description it sounds like that is happening anyway.

You can try file scavenger, but if you do then just outright buy it. Your time would be limited by using the trial to test & see what you might recover before making the purchase, which is what you would have to do to recover anything it shows you. At least this is how it used to work. Although there is probably some truly free program out there I don't know of it. You will need an active internet connection for the license. Here is the link. Good Luck.

http://www.quetek.com/

message edited by ISAmad


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#2
November 2, 2015 at 04:34:15
Thanks for your reply sir. I had already tried free version of file scavenger but it displayed that only files of 64kb or less could be recovered

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#3
November 2, 2015 at 12:33:38
You mentioned using ZAR for backup but they also have a recovery tool that worked well for someone here with the same problem. If you haven't already tried it, here's the download link:

http://www.z-a-recovery.com/downloa...


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Related Solutions

#4
November 2, 2015 at 14:09:16
Yea, I seem to remember that now with the trial size version of file scavenger. If you purchase it, that limitation should go away.

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#5
November 3, 2015 at 01:32:46
I had around 5-6000 pics in my pendrive folder which got coverted into file type. By using ZAR around 30000 .chk files have been recovered & when i m trying to convert it into Jpeg format and open pic it displays message as fill too large to open or corrupted.

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#6
November 3, 2015 at 01:33:28
Whether paid version of File Scavenger would solve the issue?????

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#7
November 3, 2015 at 13:37:49
I haven't used ZAR, but I think you will get the same result with file scavenger. I believe it is showing them as .chk files because it doesn't know what they are. It only knows there is something there and leaves it up to you to determine if its valid data or not. If you have told it to go ahead and recover those files, hopefully you told it to save it somewhere besides the pendrive. If you told it to record to the pendrive, rather than writing the files somewhere else, it would update the filesystem on the drive itself so that the data can be pieced together and accessed normally. In which case, the files would no longer be seen as missing or corrupt data on the drive if you were to run a different program like file scavenger to recover them. I could be wrong, you could try it and see but it may just be a waste of money at this point. Why don't you contact them directly and ask. If you didn't tell ZAR to recover the files back to the pendrive itself, then you may be able to continue trying other recovery utilities of this sort. I can't tell you if one uses a better algorithm over the other. There are outfits you could send your pendrive to and pay for them to perform their wizardry on. But I have no experience doing so. Maybe someone else knows of a good data recovery company like this.

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#8
November 3, 2015 at 18:30:18
Scroll down to the 'solved' posting (# 23) here:

http://www.computing.net/answers/ha...

for details on exactly how they solved the same problem as yours. I believe the zar version available now is newer than what they used but I assume it'll work the same.

You mentioned trying to 'convert them to jpg format' and that's where it messed up. Although I've never used ZAR that doesn't seem to be something you need to do.


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#9
November 3, 2015 at 23:54:55
Thanks for your reply sir. I will try to recover the files on pendrive itself.

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